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  • 2D nuclear Overhauser enhancement spectra  (1)
  • Conformational analysis  (1)
  • NAD stack interactions  (1)
  • Pulsed gradient  (1)
  • Self-diffusion  (1)
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  • 1
    Digitale Medien
    Digitale Medien
    On the structure of mucus glycoproteins: ^1H n.m.r. nuclear Overhauser enhancement study
    Amsterdam : Elsevier
    International Journal of Biological Macromolecules 10 (1988), S. 213-216 
    Details
    ISSN: 0141-8130
    Schlagwort(e): 2D nuclear Overhauser enhancement spectra ; Mucus glycoprotein ; ^1H n.m.r. spectroscopy
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0141-8130(88)90051-7
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    β-NAD+ and its stack interaction (1992)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 30 (1992), S. S3 
    Details
    ISSN: 0749-1581
    Schlagwort(e): Transient NOE experiments ; Synchronous nutation experiments ; NAD stack interactions ; Chemistry ; Analytical Chemistry and Spectroscopy
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Cross-relaxation interactions between the nicotinamide moiety and the adenine moiety of NAD in D2O solution were unambiguously revealed by steady-state NOE experiments, transient NOE experiments and synchronous nutation experiments. The experimental results, which allow a concise description in terms of auto-relaxation and cross-relaxation, are interpreted as the result of a stacking interaction. Studies of 13C relaxation and investigations on ternary mixtures with 6-methylpurine give evidence for an inter- rather than intra-molecular stack interaction, at least in the NMR concentration range.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/mrc.1260301304
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    NMR self-diffusion measurements: A different approach to complexation phenomena (1989)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 27 (1989), S. 1148-1154 
    Details
    ISSN: 0749-1581
    Schlagwort(e): Self-diffusion ; Pulsed gradient ; Complexation phenomena ; Chemistry ; Analytical Chemistry and Spectroscopy
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: 1H and 133Cs NMR self-diffusion measurements were performed by means of the pulsed gradient spin-echo method (PGSE) to evaluate the complex formation constants of Cs and 18-crown-6 and those of Cs and some ethylene glycols in D2O. The calculated complex formation constants were checked as far as possible by using similar calculations based on relaxation data. Chemical shift measurements do not allow the evaluation of complex formation constants in these systems. A cross-check was introduced to verify the calculations based on the diffusion data. Similar investigations were performed on Na, K, Cs complexes and N-phenylaza-15-crown-5 in methanol. In this case, analysis of the diffusion data and as the relaxation rate and chemical shift data led to complex formation constants for 1:1 complexes, which is in contrast to a previous report suggesting the formation of 2:1 complexes.
    Zusätzliches Material: 9 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/mrc.1260271208
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Assignment of proton NMR resonances and conformational analysis of [Lys8]-vasopressin homologues (1991)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 29 (1991), S. 580-586 
    Details
    ISSN: 0749-1581
    Schlagwort(e): [Lys8]-vasopressin homologues ; NMR assignments in peptides ; Conformational analysis ; Chemistry ; Analytical Chemistry and Spectroscopy
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: The assignment of proton NMR signals and the conformational analysis of N-(Gly)-[Lys8]-vasopressin and N-(Gly—Gly—Gly)—[Lys8]-vasopressin in dimethyl sulfoxide solution by means of one- and two-dimensional NMR techniques are presented. Dihedral angles obtained from 3J (HN—C—α-H) vicinal couplings, intramolecular distances estimated from nuclear Overhauser enhancements (NOEs) and two-dimensional experiments in the rotating frame (ROESY), as well as temperature dependences of the amide protons, suggest a more or less rigid ring conformation with an inverse γ-turn for both cyclic peptides.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/mrc.1260290608
    Standort Signatur Erwartet Verfügbarkeit
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